VAPOR-PRESSURE OF PENTAFLUORODIMETHYL ETHER

Citation
La. Weber et Dr. Defibaugh, VAPOR-PRESSURE OF PENTAFLUORODIMETHYL ETHER, Journal of chemical and engineering data, 41(3), 1996, pp. 382-385
Citations number
10
Categorie Soggetti
Engineering, Chemical",Chemistry
ISSN journal
00219568
Volume
41
Issue
3
Year of publication
1996
Pages
382 - 385
Database
ISI
SICI code
0021-9568(1996)41:3<382:VOPE>2.0.ZU;2-S
Abstract
Vapor pressures of pentafluorodimethyl ether (E125) have been measured from (228 to 331) K using two ebulliometers. Experimental pressures r anged from (65 to 2024) kPa. Thermodynamic calculations were used to e stimate pressures down to 140 K (16.5 Pa), and a vapor pressure curve is given which is valid from 140 K to the critical point (354.49 K). T he normal boiling temperature was determned to be 238.06 K. The enthal py of vaporization has been calculated from (140 to 300) K.